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The Census Data API Discovery Tool provides a machine-readable dataset discovery service and is available in three formats:

The content of is based largely on the Open Project Data Common Core Metadata Schema and is extended to include metadata specific to Census Bureau datasets. The URI may be used to access the same information as XML.

In addition to the above URIs dataset discovery is available for the entire vintage/dataset hierarchy as well. For example, the following URIs may be used to discover all datasets within the 2010 vintage:

The Open Project Data Common Core Metadata Schema documentation is a good starting point for understanding the fields output by the discovery service.

Happy discovering!

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